June 1, 1931

June 1, 1931

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News of the Month

Heat and Ventilation

By E. C. Blackbunrn Jr16 min

EDITORIALS

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More Features
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News of the Month

The F-10 discussion Notice of temporary withdrawal from passenger service of 35 tri-engined Fokkers built in 1929 (the F-10 and F-10-A models) on May 4 attracted more public attention than any previous action of the Aeronautics Branch of the Department of Commerce.
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Heat and Ventilation

Their place in the transport plane

By E. C. Blackbunrn Jr16 min

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EDITORIALS

IN Owen Johnson’s delightful stories of Dink Stover and Doc Macnooder and their compatriots, written from the schoolboy’s point of view, members of the school faculty were invariably referred to as "the natural enemy." In some quarters in the aircraft industry there is an unfortunate tendency to view the Department of Commerce as deserving that title.
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From the Lakes to the Pacific

TWELVE million miles of day and night flying were completed last January by planes of Boeing System operating over the Chicago-Oakland-San Francisco and Seattle-San Diego air mail, passenger and air express routes. Of this total, which is considered a national mileage record for a single air transport organization, nearly 9,000,000 mi. were down on the transcontinental airway, popularly known as "the backbone" of the nation’s air mail service.

By Robert Johnson12 min

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Care of the detachable-blade, metal propeller

Years of experimental work on propellers for the U. S. Army Air Corps, and years as chief engineer of the Hamilton Standard Propeller Corporation make Mr. Caldwell eminently qualified to discuss propeller problems. In the present article he covers many aspects of the care and servicing of equipment of this type.

By Frank W. Caldwell10 min

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Corrosion of duralumin rivets

An engineer of the Aeronautics Bureau of the Navy Department discusses corrosion in duralumin rivets, and its pertinent relation to manufacturing methods.

By James E. Sullivan9 min

370371

Flying Equipment

FOR the first time since the introduction of the autogiro into this country, machines of this type have been placed on the market for private use. Numerous autogiros have been built and flown experimentally, and one or two have been delivered for governmental use, but with the showing of the new machines at the recent Detroit Aircraft Show, Pitcairn Aircraft, Inc., of Willow Grove, Pa. is offering two types of autogiro for public sale.
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Single or twin-engined day bombers?

An unresolved tactical problem which is now attracting attention in the British R. A. F.

By Major Oliver Stewart8 min

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Observations on gliding angles

STUDENTS in aviation are commonly taught that the point of starting the glide into the landing field determines the point of setting down, and that one cannot by gliding more steeply bring the point of setting down any nearer, because the resulting excess speed will cause the plane to skim over the ground to the same point which would have been reached by the normal glide.

By Alexander Forbes8 min

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New Volumes for the Shelves

GERMANY’S AIR LAWS DEUTSCHE LUFTFAHRTGESETZGEBUNC by Dr. Alfred Wegerdt, Verlag Gebr. Radetski; Berlin, 1930; M. 9.50. HE progressive development of aviation since the war created new legal problems which required adequate legislation.
MAY1931 July 11931